import { mapSchema, spriteSchema, soundSchema } from "@nengine/core-schema";
import { describe, expect, it } from "vitest";
import type { EditorContentListing } from "../src/ipc.js";
import { deriveFormSchema } from "../src/renderer/form-schema.js";
import { refIdList } from "../src/renderer/form-panel.js";

function listing(overrides?: Partial<EditorContentListing>): EditorContentListing {
  return {
    kinds: [
      { kind: "sprite", count: 2, files: [{ id: "player", name: "player.yaml", path: "content/sprites/player.yaml" }] },
      { kind: "sound", count: 1, files: [{ id: "click", name: "click.yaml", path: "content/sounds/click.yaml" }] },
    ],
    mods: [],
    assets: ["grass-1", "water-1"],
    ...overrides,
  };
}

function field(schema: Parameters<typeof deriveFormSchema>[0], name: string) {
  const found = deriveFormSchema(schema).fields.find((f) => f.name === name);
  if (found === undefined) throw new Error(`no field "${name}"`);
  return found;
}

describe("form-ref asset fields (F2)", () => {
  it("sprite image layer src and sound src already resolve to the asset kind", () => {
    const frames = field(spriteSchema, "frames");
    expect(frames.type).toBe("array");
    const layers = frames.element?.fields?.find((f) => f.name === "layers");
    expect(layers?.type).toBe("array");
    const layer = layers?.element;
    expect(layer?.type).toBe("union");
    const imageBranch = layer?.branches?.find((b) => b.id === "image");
    const src = imageBranch?.fields?.find((f) => f.name === "src");
    expect(src?.type).toBe("ref");
    expect(src?.refKind).toBe("asset");
    const soundSrc = field(soundSchema, "src");
    expect(soundSrc.type).toBe("ref");
    expect(soundSrc.refKind).toBe("asset");
  });

  it("map tiles record values resolve to the asset kind (tile id → asset id)", () => {
    const tiles = field(mapSchema, "tiles");
    expect(tiles.type).toBe("record");
    expect(tiles.optional).toBe(true);
    expect(tiles.recordValue?.type).toBe("ref");
    expect(tiles.recordValue?.refKind).toBe("asset");
  });

  it("refIdList feeds asset ids for asset refs and kind ids for content refs", () => {
    const l = listing();
    expect(refIdList(l, "asset")).toEqual(["grass-1", "water-1"]);
    expect(refIdList(l, "sprite")).toEqual(["player"]);
    expect(refIdList(l, "sound")).toEqual(["click"]);
  });

  it("an empty asset list yields [] — the free-text fallback path", () => {
    const l = listing({ assets: [] });
    expect(refIdList(l, "asset")).toEqual([]);
    expect(refIdList(l, "unknown-kind")).toEqual([]);
  });
});